ID 70022

Negative software limit switch actuated.

Description

The current actual position of the axis is smaller than the position of the negative software limit switch.

See also [FCT-A2// Section: Description]

The positions of the software limit switches are used to monitor the nominal and actual position of an axis. They are specified for each axis in the axis parameters (see P-AXIS-00177, P-AXIS-00178). For the monitoring of current positions, an additional tolerance (see P-AXIS-00179) can be specified in order to prevent that slight overshoot of an axis triggers an error message.

In the NC program, the positions of the software limit switches can be set or changed by the NC commands G98/G99.

 

Possible causes:

  • An incorrect NC program
  • Overshoot of axis is too wide.

 

Possible solutions:

  • Correct NC program
  • Check the proportional gain factor (see P-AXIS-00099) of the position controller, and reduce it if necessary.
  • Increase tolerance for position controller (see P-AXIS-00179)

Response

Class

-

Closed-loop controlled axis stop.

Solution

Class

-

Correct NC program, reduce overshoot of the axis

Parameter

%1:

 

For logical axis number of concerned axis, see P-AXIS-00016

%2:

 

Drive type of concerned axis, see P-AXIS-00020

%3:

 

Current position of the axis

%4:

 

For position of negative software limit switch see P-AXIS-00178

%5:

 

Block number of the NC program, in which the error occurred.

Error type

-